Half to thomas neely



2 Sheets-Sheet 1'.

(No Model.)

A. MARLAND.

NUT MAOHINE.

No. 326,762. Pat nted Sept. 22, 1885.

INVEN'IOR BY MM ATTORNEYS.

WITNESS N. PETERS. Photo-WW". Walhinghm. n4;

(No Model.)

2 SheetsSheet 2. A. MARLAND.

NUT MACHINE.

Pateggted Se F ZZZ? WITNESSES flflk 7? lhvirn STATES ALFRED MARLAND, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO THOMAS NEELY, OF SAME PLACE.

NUT-MACHINE.

SPECIFICATION forming part of Letters Patent No. 326,762, dated September 22, 1885. Application filed May 28, 1884. (No model.)

To aZZ whom it may concern:

Be it known that I, ALFRED MARLAND, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and Improved Nut-Machine, of which the following is a full, clear, and exact description.

This invention relates to certain improve ments in the nut-machines shown and de scribed in Letters Patent nu mbered 172, 272 and 257,188, which were granted to me January, 18, 1876, and April 25, 1882, respectively.

The invention consists in the peculiar construction and arrangement of parts, as here inafter fully described,and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part of this specification,

in which similar letters of reference indicate,

corresponding parts in all the figures.

Figure 1 is a plan view of my improved nut-machine. Fig. 2 is a sectional elevation thereof, taken on the line 00 x of Fig. 1, and Fig. 3 is a transverse sectional elevation taken on the line y y of Fig. 1.

A represents the bed of the machine. To this is bolted the cross-bar B, in the center of which is held the formingdie 0, one end of which is closed by the compressing-die D, held in the sliding cross-head E. The die D is made hollow, and through it passes the punch F, which is held in the sliding cross head G,which is adapted to be drawnforward at the proper time by the connecting-rods H H and eccentrics I I on the main shaft J for punching the blank while held in the form ing-die O,as hereinafter described. The punch F, before entering the compressing-die D, passes through the hollow head L, against which the mandrel-die D abuts, which head L is held in the heavy cross-bar K, bolted to the bed A, and the head L is made adj ustable in the cross-bar K,preferably by being screwed into the said cross bar, for varying the distance of backward movement of the die D and cross-head E, for making nuts of different lengths, as will be fully described below.

M is the movable knife for cutting the blanks from the rod N, which is fed by hand or by the feeding mechanism 0 into the machine through coinciding passages made through the bed A and cross-bars G K B, the passage P in crossbar B being fitted with a cutting-die, Q, against which the movable knife M cuts the blank from the rod N. The knife M, in this instance, is reciprocated by the lever B, which is rocked upon its central pivot by the cam S, secured to the main shaft J, and the knife M is held in place against the face of the fixed cross-bar B by the dovetailed flanges T T, which form guideways for the movement of the said knife. At its cutting end the knife M is formed with the fingers or prongs a a, which serve to retain the blank while the movement of the knife carries it along to a position in line with the forming-die O and compressingdie D, which latter is adapted to be forced forward by the cam U on main shaft J and sliding yoke V, against which the cam U acts, for forcing the blanks into the forming-die and compressing them therein against the die D, thus flattening the blanks at the ends and causing the blanks to take the form of the forming-die, which may be of any desired internal form, according to the shape of nuts desired.

The die D is made hollow to permit the entrance of the punch F after it has been forced through the blank, and is held in a cavity made in the stock V, which forms a part of the yoke V, which stock passes through the cross-bar W, which guides the yoke, causing the die D to have a direct movement to and from the formingdie G, and back of and communicating with the cavity in the stock V which receives the die D is formed the outletpassage 1) for any scales or pieces of metal that may be forcedinto the die D by the punch F.

B is a bent adjustable stop-plate bolted upon the upper surface of the cross-bar B, so as to reach down in front of the passage P in the cross-bar B to limit the distance the rod N may be fed forward after the cutting of each blank, so that the blanks will always be of the proper and uniform length. Another adjustable stop, 0, is bolted to the cross-bar 5 B near the forming-die C, which stop is so arranged that the forward movement of the knife M carries the blanks against it, so that this stop serves to straighten up the blanks between theprongs a a, of the knife M to properly po- IOO sition the blanks in front of the forming-die to be forced into the forming-die G by the forward movement of the compressing-die D. After the blank has been forced forward by the die D into the forming-die O and compressed, and the compressing-die D has been carried back by the action of the cam U, the completed nut will be expelled from the forming-die O by a forward movement of the die D, which is effected by the cams E E on shaft J, yokes F F, which surround the cams E E, and connecting-rods G G, which connect the said yokes with'the cross-head E, which carries the die D, as above described. The connections of the rods G G with the cross-head E are made adjustable by means of suitable screw-nuts, a c, screwed upon the ends of the rods, so that the backward movement of the cross-head E may be regulated to suit the position of the head L, which, as above described, may be adjusted forward or backward in the cross-bar K for regulating the degree of compression of the blanks and the thickness of the nuts.

The feed mechanism 0 is composed of the upper and lower grooved rollers, d d, and the ratchet-wheel f, fixed upon the same shaft, 9, with the upper feed roller, d. The lower feed-roller, d, is constantly pressed upward by the coiled spring (3, which causes the rollers to grasp the rod N, and the ratchet f, shaft g, and upper roller, d, are revolved by the pawl h, attached to the cross-head G, so that as the cross-head G is forced backward the rod N will be forced forward, as will be clearly understood from Figs. 1 and 2.

The operation of the machine is as follows:

' The main shaft J being revolved by power applied to the shaft by the cog-wheel J, the parts of the machine being in the positions shown in Fig. 1, the knife M will be forced forward by the lever B, operated by the cam S. This movement of the knife M will sever a blank from the rod N and carry it against the stop G, and thus partially compress the blank and hold it fairly in front of the forming-die O. The compressing-die D will now be forced forward by the action of the cam U,which movement of the said die will force the blank into the forming-die G and compress it against the die D, causing the nut to take the form of the forming-die O. The blank being thus compressed in the forming-die O, the die D, owing to the shape of the cam U, will be caused to dwell for a short space of time. During this interval the eccentrics I I, acting through yokes H H and connecting-rods H H, will draw forward the cross-head G, which movement will bring forward the punch F and cause it to puncture the blank held in the forming-die 0. While the blank is being compressed by the forward movement of the die D the knife M will be carried back to its originaLposition, so as not to interfere with the feeding forward of the rod N. The punch F having been forced through the blank, the

cams I I will act to force back the cross-head G, which will withdraw the punch F from the nut and at the same time operate the feedmechanism 0, which will force the rod N forward the length of a blank. At the time the crosshead G is being forced backward for withdrawing the punch F from the nut the cam U will act to withdraw the die D from the forming-die G, and at the same time the cams E E, acting through yokes F F and rods G G, will draw forward the cross-head E, which will cause the die D to expel the finished nut from the forming-die C. The forming-die O and the compressing-dies D D are in this instance shown hexagonal in crosssection for making hexagonal nuts; but I do not confine myself to any particular form of dies, as they may be made in various forms to suit the shape of nuts desired to be produced; nor do I confine myself to any particular form of rod from which the blanks are out. While preferring a round rod, the same nuts can be made from blanks cut from hexagonal, .oval, or other shaped rods other than the fiat bars fromwhich nuts have heretofore been made.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a nut-machine, the combination, with forming and compressing dies, of a knife for cutting a blank and carrying it in line with the forming die, substantially as herein shown and described.

2. In a nut-machine, the combination, with forming and compressing dies, of a cutting-die at one sideof the forming-die, ablank cutting and carrying knife, and means for operating said knife substantially as herein shown and described, whereby provision is made for cutting the blanks and feeding them to the dies,

as set forth. Y

3. In a nut-machine, the combination, with the forming die 0 and the compressing-dies D D, of the stationary cutting-die Q, and the reciprocating knife M, formed with the fingers a, substantially as herein shown and described, whereby provision is made for cutting the blanks and carrying them in line with the forming-die, as set forth. 4. In aunt-machine, the combination, with the formingdie G and the compressing-dies D D, of "the stationary cutting-die Q, thereciprocating knife M, provided with the fingers a, and the stop 0, substantially as herein shown and described, whereby provision is made for cutting the blanks, carrying them in 'linewith the forming-die, and partially compressing them, as set forth.

5. In a nut-machine, the combination, with the stationary cutting-die Q and the reciprocating knife M, of the formingdie O, the hollow compressing-dies D D, and means for operating said dies, substantially as herein shown and described.

6. In a nut-machine, the combination, with the frame A, the cross-bar K, the compress IIO ing-die D, the cross-head E, and means for opciprocating punch F, the dieD being adapted o erating said cross-head,of the head L, adjustto be drawn forward for expelling the nut ably secured in the said cross-bar, snbstanfrom the forming-die, substantially as and for tially as herein shown and described, and for the purposes set forth.

5 the purpose set forth.

7. The reciprocating knife M, formed with ALFRED MARLAND' the fingers a a, feed mechanism 0, and cut- \Vitnesses: ting-die Q, in combination with the forming- FRANK W. SMITH, die 0, hollow compressingdies D D, and re- B. O. CHRISTY. 

